From: Nic Chautru <nicolas.chau...@intel.com>
Added support to expose the device status seen from the
host through v2pf mailbox communication.
Signed-off-by: Nic Chautru <nicolas.chau...@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
drivers/baseband/acc/rte_acc200_pmd.c | 30 +++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/baseband/acc/rte_acc200_pmd.c
b/drivers/baseband/acc/rte_acc200_pmd.c
index 828e4a73cd..522603e095 100644
--- a/drivers/baseband/acc/rte_acc200_pmd.c
+++ b/drivers/baseband/acc/rte_acc200_pmd.c
@@ -211,6 +211,33 @@ fetch_acc200_config(struct rte_bbdev *dev)
acc_conf->q_fft.aq_depth_log2);
}
+static inline void
+acc200_vf2pf(struct acc_device *d, unsigned int payload)
+{
+ acc_reg_write(d, HWVfHiVfToPfDbellVf, payload);
+}
+
+/* Request device status information. */
+static inline uint32_t
+acc200_device_status(struct rte_bbdev *dev)
+{
+ struct acc_device *d = dev->data->dev_private;
+ uint32_t reg, time_out = 0;
+
+ if (d->pf_device)
+ return RTE_BBDEV_DEV_NOT_SUPPORTED;
+
+ acc200_vf2pf(d, ACC_VF2PF_STATUS_REQUEST);
+ reg = acc_reg_read(d, HWVfHiPfToVfDbellVf);
+ while ((time_out < ACC200_STATUS_TO) && (reg ==
RTE_BBDEV_DEV_NOSTATUS)) {
+ usleep(ACC200_STATUS_WAIT); /*< Wait or VF->PF->VF Comms */
+ reg = acc_reg_read(d, HWVfHiPfToVfDbellVf);
+ time_out++;
+ }
+
+ return reg;
+}
+
/* Checks PF Info Ring to find the interrupt cause and handles it accordingly.
*/
static inline void
acc200_check_ir(struct acc_device *acc200_dev)
@@ -484,6 +511,7 @@ acc200_setup_queues(struct rte_bbdev *dev, uint16_t
num_queues, int socket_id)
/* Mark as configured properly */
d->configured = true;
+ acc200_vf2pf(d, ACC_VF2PF_USING_VF);
rte_bbdev_log_debug(
"ACC200 (%s) configured sw_rings = %p, sw_rings_iova =
%#"
@@ -1011,6 +1039,8 @@ acc200_dev_info_get(struct rte_bbdev *dev,
/* Read and save the populated config from ACC200 registers. */
fetch_acc200_config(dev);
+ /* Check the status of device. */
+ dev_info->device_status = acc200_device_status(dev);
/* Exposed number of queues. */
dev_info->num_queues[RTE_BBDEV_OP_NONE] = 0;
--
2.37.1
